Clean all parts in dry cleaning solvent.

TM 9-2320-360-34-2

28-2. WINCH REPAIR (CONT)

(7) Inspect disk friction plates for broken or damaged sintered bronze faces. Measure thickness of plate.

Replace if damaged, warped, bent, or if overall thickness is less than 0.080 in. (2.03 mm).

(8) Inspect drive plates for bent or warped surface and freedom of movement on brake shaft. Measure

thickness of plate. Replace if damaged, warped or if thickness is 0.055 in. (1.40 mm) or less.

(9) Compress spring to 3/4 in. (19.05 mm) and release. Measure length of spring. Spring must return to 1 in.

(25.4 mm) free length. Replace spring if it does not return to 1 in. (25.4 mm) free length.

(10) Measure thickness of thrust bearing. Replace thrust bearing if pitted or if worn to less than 0.230 in. (5.84

mm).

(11) Inspect ball bearings and races for damage. Replace galled or pitted races and ball bearings or ball

bearings that do not rotate freely in inner and outer races.

(12) Inspect primary and secondary carrier assembly gear teeth and bearings. Replace assembly if teeth are

worn, pitted, or galled or if bearings have failed.

(13) Inspect sun gear, clutch sun gear, and secondary sun gear for damage. Replace any gear if teeth faces

are worn, galled, pitted, or broken or if flaking has occurred on more than 10% of any tooth surface.

(14) Inspect bronze bearings for damage. Replace if bearing surface is spalled, pitted, or if inner diameter is out

of round.

(15) Inspect ring gears for damage. Replace ring gear if teeth faces are galled, pitted, spalled, or broken or if

flaking has occurred on more than 10% of any tooth surface.

(16) Inspect planetary carrier assembly for damage. Replace assembly if gears will not rotate freely or if teeth

faces are worn, galled, pitted, or broken or if flaking has occurred on more than 10% of any tooth surface.

(17) Inspect output shaft for damage. Replace output shaft if journals for bronze bearings are worn to less than

4.490 in. (114.05 mm) diameter, are galled or scarred enough to damage bearing, or if tooth faces are

worn, galled, pitted, or broken over 10% of any tooth surface.

(18) Inspect relief vent for damage. Replace if spring loaded poppet does not operate freely.

(19) Inspect input shaft for damage. Replace input shaft if splines are damaged to extent that sun gear will not

slide freely or if spline teeth are worn, galled, pitted, broken, or if flaking has occurred on more than 10% of

any tooth surface.

(20) Inspect dutch adapter seal bores for nicks and scratches. Replace if damaged.

(21) Inspect clutch drive gear spline teeth for galling, pitting, breakage, and flaking over 10% of any tooth

surface. Replace if damaged.

(22) Inspect thrust ring for cracks, pitting, galling, and breakage. Replace if damaged.

28-16